goccy / p5-Compiler-Lexer

Lexical Analyzer for Perl5

NAME

Compiler::Lexer - Lexical Analyzer for Perl5

SYNOPSIS

use Compiler::Lexer;
use Data::Dumper;

my $filename = $ARGV[0];
open my $fh, '<', $filename or die "Cannot open $filename: $!";
my $script = do { local $/; <$fh> };

my $lexer = Compiler::Lexer->new($filename);
my $tokens = $lexer->tokenize($script);
print Dumper $tokens;

my $modules = $lexer->get_used_modules($script);
print Dumper $modules;

METHODS

• my $lexer = Compiler::Lexer->new($options);

  create new instance. You can create object from $options in hash reference.

  options list

  • filename
  • verbose : includes token of Pod, Comment and WhiteSpace

• $lexer->tokenize($script);

  get token objects includes parameter of 'name' or 'type' or 'line' and so on. This method requires perl source code in string.

• $lexer->set_library_path(['path1', 'path2' ...])

  set libraries path for reading recursively. Default paths are @INC.

• $lexer->recursive_tokenize($script)

  get hash reference like { 'module_nameA' => [], 'module_nameB' => [] ... }. This method requires per source code in string.

• $lexer->get_used_modules($script);

  get names of used module. This method requires perl source code in string.

AUTHOR

Masaaki Goshima (goccy) <goccy(at)cpan.org>

CONTRIBUTORS

tokuhirom: Tokuhiro Matsuno

LICENSE AND COPYRIGHT

Copyright (c) 2013, Masaaki Goshima (goccy). All rights reserved.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.